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annotate Samples/Common/RtViewerApp.h @ 1406:5d7ee14dc1eb

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Mouse wheel handler is now OK in SDL and Wasm
author Benjamin Golinvaux <bgo@osimis.io>
date Thu, 30 Apr 2020 00:25:55 +0200
parents 3e644f6fadd4
children 07fac4fdbe07
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2020 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21 #include <Framework/Viewport/IViewport.h>
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22
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23 #include <Framework/Loaders/DicomStructureSetLoader.h>
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24 #include <Framework/Loaders/OrthancMultiframeVolumeLoader.h>
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25 #include <Framework/Loaders/OrthancSeriesVolumeProgressiveLoader.h>
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26 #include <Framework/Loaders/ILoadersContext.h>
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27 #include <Framework/Messages/IMessageEmitter.h>
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28 #include <Framework/Messages/IObserver.h>
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29 #include <Framework/Messages/ObserverBase.h>
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30 #include <Framework/Oracle/OracleCommandExceptionMessage.h>
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31 #include <Framework/Scene2DViewport/ViewportController.h>
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32 #include <Framework/Volumes/DicomVolumeImage.h>
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33
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34 #include <boost/enable_shared_from_this.hpp>
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35 #include <boost/thread.hpp>
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36 #include <boost/noncopyable.hpp>
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37
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38 #if ORTHANC_ENABLE_SDL
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39 #include <SDL.h>
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40 #endif
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41
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42 namespace OrthancStone
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43 {
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44 class OpenGLCompositor;
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45 class IVolumeSlicer;
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46 class ILayerStyleConfigurator;
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47 class DicomStructureSetLoader;
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48 class IOracle;
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49 class ThreadedOracle;
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50 class VolumeSceneLayerSource;
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51 class SdlOpenGLViewport;
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52 class RtViewerView;
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53
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54 enum RtViewerGuiTool
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55 {
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56 RtViewerGuiTool_Rotate = 0,
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57 RtViewerGuiTool_Pan,
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58 RtViewerGuiTool_Zoom,
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59 RtViewerGuiTool_LineMeasure,
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60 RtViewerGuiTool_CircleMeasure,
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61 RtViewerGuiTool_AngleMeasure,
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62 RtViewerGuiTool_EllipseMeasure,
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63 RtViewerGuiTool_LAST
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64 };
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65
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66 const char* MeasureToolToString(size_t i);
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67
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68 static const unsigned int FONT_SIZE_0 = 32;
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69 static const unsigned int FONT_SIZE_1 = 24;
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70
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71 class Scene2D;
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72 class UndoStack;
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73
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74 /**
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75 This application subclasses IMessageEmitter to use a mutex before forwarding Oracle messages (that
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76 can be sent from multiple threads)
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77 */
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78 class RtViewerApp : public ObserverBase<RtViewerApp>
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79 {
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80 public:
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81
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82 void PrepareScene();
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83
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84 #if ORTHANC_ENABLE_SDL
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85 public:
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86 void RunSdl(int argc, char* argv[]);
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87 void SdlRunLoop(const std::vector<boost::shared_ptr<OrthancStone::RtViewerView> >& views,
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88 OrthancStone::IViewportInteractor& interactor);
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89 private:
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90 void ProcessOptions(int argc, char* argv[]);
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91 void HandleApplicationEvent(const SDL_Event& event);
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92 #elif ORTHANC_ENABLE_WASM
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93 public:
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94 void RunWasm();
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95 #else
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96 # error Either ORTHANC_ENABLE_SDL or ORTHANC_ENABLE_WASM must be enabled
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97 #endif
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98
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99 public:
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100 void DisableTracker();
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101
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102 /**
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103 Called by command-line option processing or when parsing the URL
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104 parameters.
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105 */
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106 void SetArgument(const std::string& key, const std::string& value);
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107
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108 const VolumeImageGeometry& GetMainGeometry();
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109
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110 static boost::shared_ptr<RtViewerApp> Create();
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111
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112 void CreateView(const std::string& canvasId, VolumeProjection projection);
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113
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114 protected:
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115 RtViewerApp();
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116
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117 private:
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118 void CreateLoaders();
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119 void StartLoaders();
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120 void SelectNextTool();
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121
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122 // argument handling
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123 // SetArgument is above (public section)
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124 std::map<std::string, std::string> arguments_;
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125
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126 const std::string& GetArgument(const std::string& key) const;
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127 bool HasArgument(const std::string& key) const;
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128
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129 /**
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130 This adds the command at the top of the undo stack
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131 */
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132 //void Commit(boost::shared_ptr<TrackerCommand> cmd);
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133 void Undo();
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134 void Redo();
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135
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136 void HandleGeometryReady(const DicomVolumeImage::GeometryReadyMessage& message);
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137
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138 // TODO: wire this
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139 void HandleCTLoaded(const OrthancSeriesVolumeProgressiveLoader::VolumeImageReadyInHighQuality& message);
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140 void HandleCTContentUpdated(const OrthancStone::DicomVolumeImage::ContentUpdatedMessage& message);
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141 void HandleDoseLoaded(const OrthancStone::DicomVolumeImage::ContentUpdatedMessage& message);
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142 void HandleStructuresReady(const OrthancStone::DicomStructureSetLoader::StructuresReady& message);
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143 void HandleStructuresUpdated(const OrthancStone::DicomStructureSetLoader::StructuresUpdated& message);
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144
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145
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146 private:
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147 void RetrieveGeometry();
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148 void FitContent();
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149 void InvalidateAllViewports();
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150 void UpdateLayersInAllViews();
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151
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152 private:
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153 boost::shared_ptr<DicomVolumeImage> ctVolume_;
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154 boost::shared_ptr<DicomVolumeImage> doseVolume_;
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155
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156 std::vector<boost::shared_ptr<RtViewerView> > views_;
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157
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158 boost::shared_ptr<OrthancSeriesVolumeProgressiveLoader> ctLoader_;
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159 boost::shared_ptr<OrthancMultiframeVolumeLoader> doseLoader_;
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160 boost::shared_ptr<DicomStructureSetLoader> rtstructLoader_;
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161
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162 /** encapsulates resources shared by loaders */
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163 boost::shared_ptr<ILoadersContext> loadersContext_;
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164
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165 /**
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166 another interface to the ctLoader object (that also implements the IVolumeSlicer interface), that serves as the
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167 reference for the geometry (position and dimensions of the volume + size of each voxel). It could be changed to be
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168 the dose instead, but the CT is chosen because it usually has a better spatial resolution.
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169 */
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170 boost::shared_ptr<OrthancStone::IGeometryProvider> geometryProvider_;
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171
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172
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173 boost::shared_ptr<IFlexiblePointerTracker> activeTracker_;
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174
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175 RtViewerGuiTool currentTool_;
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176 boost::shared_ptr<UndoStack> undoStack_;
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177 };
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178
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179 }
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180
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181
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182